Seasonal distribution of large phytoplankton in the Keban Dam Reservoir

Download

index.pdf

Date

1999-04-01

Author

Akbay, N
Anul, N
Yerli, S
Soyupak, S
Yurteri, C

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

122
views

0
downloads

The Keban Dam Reservoir (KDR), in eastern Anatolia, is one of the largest man-made reservoirs of the world with a storage capacity of >30 billion m(3). In the KDR, long-term water quality surveys have been carried out in order to determine the trophic status of this rather unique reservoir. In this paper, the focus is on the large phytoplankton species that were identified during the field studies conducted between 1991 and 1993. According to the results of the surveys, the overall phytoplankton density is low during the fall and winter months. However, species belonging to various groups started to become abundant in the spring when the water level began to rise. In terms of species diversity, the most dominant group was the Bacillariophyta. Other dominant species belonged to the Cyanophyta, Chloropyta, Pyrrophyta, Chrysophyta and Euglenophyta. The effects of various physicochemical quality parameters on the seasonal distribution and succession of the above taxa, as well as the interrelation with eutrophication, are also discussed.

Subject Keywords

Eutrophication, Lakes, Shallow

URI

https://hdl.handle.net/11511/67947

Journal

JOURNAL OF PLANKTON RESEARCH

DOI

https://doi.org/10.1093/plankt/21.4.771

Collections

Department of Environmental Engineering, Article

Suggestions

OpenMETU
Core

Palaeoenvironment and human interaction during the last 4k years in the dried lake sediments (amik lake, southern turkey): evidences of lake level changes El Ouahabi, Meriam; Hubert-ferrari, Aurelia; Auwera, Vander; Avşar, Ulaş; Karabacak, Volkan (2019-02-01) The Amik Basin in the Eastern Mediterranean region has been continuously occupied since 6000-7000 BC. The landscape has sustained with highly variable anthropic pressure culminating during the Late Roman Period when the Antioch city reached its golden age. The basin also sustained a high seismic activity (M≥7) as it is a releasing step-over along the Dead Sea Fault. The study focuses on the sedimentary record of the Amik Lake occupying the central part of the Basin. Our objective is to constrain major paleo...
Sedimentary records of past earthquakes in Boraboy Lake during the last ca 600 years (North Anatolian Fault, Turkey) Avşar, Ulaş; De Batıst, Marc; Schmidt, Sabine; Fagel, Nathalie (2015-09-01) Multiproxy sedimentological analyses along 4.9 m-long sequence of Boraboy Lake, which is located on the central eastern part of the North Anatolian Fault (NAF), reveal the sedimentary traces of past large earthquakes in the region. The lake has a relatively large catchment area (10 km(2)) compared to its size (0.12 km(2)), which renders sedimentation sensitive to heavy rain/storm events. Accordingly, the background sedimentation, which is composed of faintly laminated reddish/yellowish brown clayey silt, is...
Parametric Analysis of Two-Layer Shallow Flow Modelling for Landslide and Water Waves in Dam Reservoirs Aksen, Mustafa Meriç; Aydın, İsmail; Department of Civil Engineering (2022-1-31) Landslides into dam reservoirs can create large water waves which may cause overtopping of the dam body or even dam breaking in extreme cases. Numerical simulations of water surface deformation in the complete dam reservoir after the impact of sliding mass is necessary to predict potential risks of landslide generated waves. Depth integrated shallow flow equations may be useful to model the generation and propagation of water waves in the reservoir after landslides. Coulomb model for the slide material is c...
Sustainable management of Mogan and Eymir Lakes in Central Turkey Yagbasan, Ozlem; Yazıcıgil, Hasan (2009-01-01) Mogan and Eymir Lakes, located 20 km south of Ankara in Central Turkey, are important aesthetic, recreational, and ecological resources. Dikilitas and Ikizce reservoirs, constructed on upstream surface waters, are two man-made structures in the basin encompassing an area of 985 km(2). The purpose of this study is to quantify groundwater components in lakes' budgets and to assess the potential impacts of upstream reservoirs on lake levels for sustainable management of the system. Available data have been use...
Seismically-triggered organic-rich layers in recent sediments from Gollukoy Lake (North Anatolian Fault, Turkey) Avşar, Ulaş; De Batist, Marc; Lepoint, Gilles; Schmidt, Sabine; Fagel, Nathalie (2014-11-01) Multi-proxy analyses on the sedimentary sequence of Gollukoy Lake, which is located on the eastern North Anatolian Fault (NAF), reveals a complete and high-resolution paleoseismic record for the last 650 years. Six sedimentary events are detected in a 3.1 m-long piston core. They form distinct organic-rich intercalations within the background sedimentation, which are characterized by strong anomalies on the loss-on-ignition (LOI550) and total organic carbon (TOC) profiles, as well as by lighter colours on t...

Citation Formats

N. Akbay, N. Anul, S. Yerli, S. Soyupak, and C. Yurteri, “Seasonal distribution of large phytoplankton in the Keban Dam Reservoir,” JOURNAL OF PLANKTON RESEARCH, pp. 771–787, 1999, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67947.